Eastern Arborvitae – 'Emerald', 'Techny', 'Degroots Spire', 'North Pole'

Thuja occidentalis

Eastern Arborvitae – 'Emerald', 'Techny', 'Degroots Spire', 'North Pole' (Thuja occidentalis) is a tree suited to the Colorado Front Range, rated "Recommended for Most Sites" on the 2024 Front Range Tree Recommendation List. It matures to about 12–30 ft tall and 4–8 ft wide, and needs medium to high water. Needs protected area; susceptible to winter burn.

medium to high water12–30 ft tall and 4–8 ft wideDeer-resistant

Photos

Eastern Arborvitae – 'Emerald', 'Techny', 'Degroots Spire', 'North Pole' (Thuja occidentalis) — (c) Douglas Goldman, some rights reserved (CC BY-SA), uploaded by Douglas Goldman

Eastern Arborvitae – 'Emerald', 'Techny', 'Degroots Spire', 'North Pole' (Thuja occidentalis) — mature form — (c) Tom Norton, some rights reserved (CC BY)

Eastern Arborvitae – 'Emerald', 'Techny', 'Degroots Spire', 'North Pole' (Thuja occidentalis) — foliage — no rights reserved

Eastern Arborvitae – 'Emerald', 'Techny', 'Degroots Spire', 'North Pole' (Thuja occidentalis) — bloom — (c) Chris Johnson, some rights reserved (CC BY)

At a glance

Rating: Recommended for Most Sites
Botanical name: Thuja occidentalis
Variety / cultivar: Eastern Arborvitae – 'Emerald', 'Techny', 'Degroots Spire', 'North Pole'
Type: Tree
Mature size: 12–30 ft tall and 4–8 ft wide
Water needs: medium to high water
Colorado native: No
Foliage: Evergreen
Soil: clay, loam
Soil pH: 6.0–8.2
Hail tolerance: high
Wind tolerance: high
Salt tolerance: moderate

Site factors to consider

Critical: Cold Hardiness
Watch: Leaf Scorch

Frequently asked questions

Is Eastern Arborvitae – 'Emerald', 'Techny', 'Degroots Spire', 'North Pole' good for the Colorado Front Range?: Yes. Eastern Arborvitae – 'Emerald', 'Techny', 'Degroots Spire', 'North Pole' is included in the Front Range Plant Finder as a tree suited to Colorado's Front Range, rated "Recommended for Most Sites" on the 2024 Front Range Tree Recommendation List.
How big does Eastern Arborvitae – 'Emerald', 'Techny', 'Degroots Spire', 'North Pole' get?: It matures to about 12–30 ft tall and 4–8 ft wide.
How much water does Eastern Arborvitae – 'Emerald', 'Techny', 'Degroots Spire', 'North Pole' need?: It needs medium to high water once established.
Is Eastern Arborvitae – 'Emerald', 'Techny', 'Degroots Spire', 'North Pole' native to Colorado?: No — it is not a Colorado native, but it grows well on the Front Range.

Eastern Arborvitae – 'Emerald', 'Techny', 'Degroots Spire', 'North Pole'

Photos

At a glance

Site factors to consider

Frequently asked questions

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See also

Related trees